Rotary explosive-engine.



' W. A. SMITH.

ROTARY EXPLOSION ENGINE.

APPLIOATION FILED DBO. 24, 1901.

920,678. Patented May 4, 1909.

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ROTARY EXPLOSION ENGINE,

APPLICATION FILED DEG. 24, 1901.

Patented May 4, 1909 8 SHEETS-SHEET 2.

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W. A. SMITH ROTARY EXPLOSION ENGINE.

APPLICATION FILED 1130.24, 1901.

Patented May 4, 1909.

INVENTOH W ZZza/r/ @5. 51121772 8 SHEETS-SHEET 3.

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W. A. SMITH. ROTARY EXPLOSION ENGINE. APPLIGATION FILED mo. 24, 1907.

WITNESSES W. A. SMITH.

ROTARY EXPLOSION ENGINE.

APPLICATION FILED D110. 24, 1907.

920,678. Patented May 4, 1909.

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INVENTOH N 8 SHEETS-SHEET 6 Patented May 4, 1909.

W. A. SMITH.

ROTARY EXPLOSION ENGINE.

APPLICATION FILED D50. 24, 1907.

- WITNESSES W; A. SMITH.

ROTARY EXPLOSION ENGINE. APPLIOATION FILED DEO.24,1907.

Patented May 4, 1909.

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W. A. SMITH. ROTARY EXPLOSION ENGINE. APPLICATION FILED 1330.24, 1907.

Patented May 4, 1909.

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UNITED PATENT OFFICE.

WILLIAH ARTHUR SMITH, OF LOS ANGELES, CALIFORNIA.

ROTARY EXPLOSION-ENGINE.

No. 920,678. Specification of Letters Patent. Patented May 4, 1909.

Application filed December 24, 1907. Serial No. 407,874.

To all 107mm it may concern: rotor or piston B, having its shaft C jour-Be it known that 1, WILLIAM ARTHUR naled in suitable bearings D,arranged in the SMITH, a citizen of the United States, and a heads A, Aof the cylinder A, and the peresident of Los Angeles, in the county ofLos ripheral face of the said rotor B is provided Q Angeles and State ofCalifornia, have inwith spaced recesses or pockets B, and the vented anew and Improved Rotary Explosaid peripheral face is engaged atdiametsion-Engine, of which the following is a full, rically oppositepoints by compression memclcar, and exact description. here E, E,movable in compression chambers The object of the invention is toprovide a F, F receiving the explosive gas by way of 10 new and improvedrotary explosion or gas the admission valves G, G, from supply pipesengine, arranged to utilize the force of the H, H leading to acarburetor or other suitexplosive mixture to the fullest advantage, ablesupply of explosive gas. The compresby giving a plurality of impulses tothe rotor sion chambers F, F connect with valved at each revolutionthereof, thus insuring an storage chambers I, I, for storing the comeasyand steady running of the engine. pressed explosive gas, which istransferred by The invention consists of novel features transferringdevices J, J in proper charges to and parts and combinations of thesame, the interior of the cylinder A, to be exploded which will be morefully described hereintherein, as hereinafter more fully described,alter and then pointed out in the claims. to cause the rotor B to rotatein the direction 20 A practical embodiment of the invention of the arrow20,- as indicated in Fig. 4. The is represented in the accompanyingdrawings compression members E and E, form with forming a part of thisspecification, in which the recesses B of the rotor B workingchamsimilar characters of reference indicate corbers A A in the cylinderA, and the said responding parts in all the views. working chambers Aand A are adapted to Figure 1 is a plan view of the improvebe connectedby the recesses B in the rotor ment, Fig. 2 is a rear end elevation ofthe B with the exhaust chambers A A, from same; Fig. 3 is a front endelevation of the which lead exhaust pipes K and -K for carrysame, partsbeing shown in section Fig. 4 is ing off the exhaust gases. an enlargedcross section of the improvement The compression members E and E are 30on the line 4-4 of Fig. 1; Fig. 5 is an en preferably mounted to swing,and for this larged longitudinal sectional elevation of the purpose aresecured on transversely-extendsame, on the line 55 of Fig. 1; Fig. 6 isan ing shafts E E ournaled in suitable bearenlarged longitudinal sectionof the ignition ings, arranged in the heads A, A of the and deliveryvalve provided with a water cylinder A. .One outer end of each shaft Epump, the section being on the line 6-6 of E carries an arm E (see Fig.2), pressed on Fig. 3; Fig. 7 is an enlarged longitudinal secby a springE, to hold the free end of the tional elevation of the ignition anddelivery compression member E in firm contact with valve having adistributor for controlling the the peripheral surface of the rotor B.Now ignition, the section being on the line 7-7 of when the rotor Brotates in the direction of 4-0 Fig. 3 Fig. 8 is an enlarged crosssection of the arrow a, then the compression members the distributer onthe line 8% of Fig. 7; E and E are caused to swing inward by the Fig. 9is an enlarged sectional elevation of action of their springs E, to drawexplosive the contact arrangement for the ignition and gas by way of theadmission valves G and G delivery valve, the section being on the lineinto the compression chambers F, F, and the 10 4:) )9 of Fig. 1; Fig.lOis an enlarged sectional said compression members E, E are caused planview of one of the ignition and delivery to swing outward by the rotor Bagainst the valves, and the means for forcing air through tension oftheir springs E, so that the comthe same for scavenging purposes, thesecpression member E or E compresses the tion being on the line 10.1OofFigZ; Fig. previously drawn-in explosive gas, it being 10% 51 11 is areduced longitudinal sectional elevaunderstood that at this time thecorrespondtion of the cylinder and its water jacket; Fig. ing admissionvalve G or G is closed. 12 is a sectional elevation of the water jacketThe admission valves G and G are preferon the line 12*12 of Fig. 11, andFig. 13 is a ably in the form of rotary valves, mounted to like view ofthe same on the line 13 18 of turn in valve casings G G having ports a,Ill 55 F ig. 11. b and a, b, respectively, of which the ports In thecylinder A is mounted to turn the l a, a connect by channels 0, c withthe supply pipes H, H, while the ports I), I) open into the compressionchambers F, F. The ad mission valves G and G are mounted to rotate insuch a manner that they alternately connect their supply ipes with thecompression chambers, as wil l be readily understood by reference toFig. 4, in which the valve G is shown closed while the valve G is open.

The storage chambers I and I are provided with valve casings I I havingvalve seats I 1", leading to the compression chambers, F, F, and thesaid valve seats I are normally closed by valves I, I, normally held totheir seats by springs I I, as plainly indicated in Fig. 4. The valvesI, I are held to their seats by the springs 1 I" until the explosivegases in the compression chambers F, F have been compressed to such adegree that the tension of the springs I I is overcome, and when thistakes place the valves I, I open to permit the compressed explosivegases to pass into the storage chambers I, I.

The transferring devices J and J are preferably in the form of revolubleplugs J J each having a plurality of compartments J, J and mounted toturn in casings J, J provided with ports (Z, c and d, (2, respectively,of which the ports d, (1 connect with the storage chambers I, I, whilethe ports a, 6 open into the cylinder A, adjacent to the free ends ofthe compression members E and E. The chambers J, J are adapted toregister successively with the ports at, e and d a, so that thecompressed explosive gas in the storage chambers I and I successivelyfills the chambers J J to be then carried by the said chambers to theports 6, c, from which the charges pass into the cylinder A adjacent tothe corresponding compression members E and E. The plugs J J arearranged in such a manner relative to their ports d and e and d, 0, sothat when one plug is connected with its storage chamber the other oneis disconnected from its storage chamber, as indicated in Fig. 4. In alike manner one plug delivers gas to the cylinder A while the other plugis cut off therefrom.

The plugs J J and the admission valves G, G are continuously rotatedfrom the rotor shaft 0, and for this purpose the said shaft O isprovided with a gear wheel L (see Figs. 3 and 5) in mesh with gearwheels L, L secured on auxiliary shafts N, N engaging the shafts J J ofthe plugs J J and the gear wheels L, L are in mesh with gear wheels LL", secured on the shafts G, G of the admission valves G and G. Thuswhen the rotor B is turning in the cylinder A, a continuous rotarymotion. is transmitted by the gear wheels L, L, U, L and L to the plugsJ J and the admission valves G, G, to rotate the same simultaneously,with a view to insure a proper admission of the explosive gas to thecompression chambers F,

F, and to insure a proper transferring of the compressed charges fromthe storage chamhers I, I into the cylinder A at approximatelydiametrical points thereof.

Each of the compartments J J in the revoluble plugs J J, is providedwith an electric spark plug O or O of any approved construction, theseveral spark plugs being controlled by a distributer P, having acentral revoluble contact carrier P secured on the shaft N, previouslymentioned, and shown in F 7 and 8. On the carrier l are fulcrumed thespring-pressed contacts P adapted to alternately engage springpressedcontacts P, P, fulcrumed on plates P P, insulated on the distributercasing P and provided with binding posts P, P, connected. by wires with.the binding posts Q, Q, held on the transferring devices J, J. Each setof binding posts Q, Q is provided with a spring-contact arm forengagement with the electrodes of the spark plug O or O, as plainlyshown in Fig. 9, so that when the plugs J J revolve the contact arm Qsuccessively makes contact with the spark plugs O and O. By thearrangement described, a spark is produced in the chamber J or J,whenever such chamber moves in register with the corresponding port 0 or6, so that the gases passing into the cylinder are burned and the rotorB is turned in the direction of the arrow a: by the expanded gases.

In order to clean the compartment J J of the products of combustionafter the chambers have passed the ports 0, c, the following arrangementis made, special reference being had to Fig. 10. The compartment J or J,after leaving the port 0 or c, registers at opposite ends with the inletport f and the exhaust port f, of which the latter port f leads to theatmosphere while the portf connects with the discharge pipe S of arotary blower S of any approved construction, and driven directly fromthe shaft C (see Fig. 3). Thus when the engine is running, the air drawnin by the blower S is forced by way of the outlet pipes S and the portsf into the compartments J J", to drive the products of combustion out ofthese compartments by way of the ports f, so that the said com.-partments are perfectly clean when next registering with the ports (Z,(1 leading to the storage chambers I, I.

The cylinder heads A, A are made hollow, to form water jackets (seeFigs. 11, 12 and 13), in communication with water jackets around thecylinder A, as indicated in Figs. 4, 5 and 11. In order to circulate thewater through the said connected water jackets, a rotary pump T isemployed, driven from the shaft N (see Fig. 3), the outlet pipe T of thepump being connected with the water jacket in the lower part of thecylinder head A, so that the water flows from the pump T through thepipe T into the lower righthand corner of the cylinder A and then flowsfrom right to the left through the water jacket in the lower part of thecylinder A to a point just beyond the center (see Fig. 12) at whichpoint it divides and flows through opposite water ways 9 and g into theheads A, A The water again divides in the heads A, A and flows upthrough the heads A, A to and through opposite water ways g, g into thewater jacket in the upper part of the cylinder A, in which it flows fromthe right to the left and passes out through the discharge pipe T in theupper lefthand corner of the cylinder A.

Lubricants are supplied to the various working parts through oil pipesU, connected with a suitable oil supply.

The operation is as follows: WVhen the several parts are in the positionillustrated in Fig. 4, the compression member E is with its free end incontact with a recess B of the rotor B, thus forming with the rotor aworking chamber A in the cylinder A. One of the chambers J in therevoluble plug J is in register with the port 6, and the charge in thischamber is ignited and the burning gases pass into the working chamber Ato act on the rotor B and turn the same in the direction of the arrowThe rotation of the rotor B causes an outward swinging of thecompression member E, for the latter to compress the gas drawn into thecompression chamber F during the previous inward movement of thecompression member E. The compressed charge in the compression chamber Fnow passes by way of the valve I into the storage chamber I, out ofcommunication at this time with the revoluble plug J of the transferringdevice J.

.lhe products of combustion in the working chamber A are carried forwardin the cylinder A and finally pass into the exhaust chamber A, fromwhich leads the pipe K for carrying off the exhaust gases.

The free end of the compression member E (as shown in Fig. 4) is in anoutermost position, and the admission valve G is open, so that the rotorB in advancing allows the comp ression member E to swing inward, wherebygas is drawn by way of the open admission valve G into the compressionchamber F. The revolving plug J of the transferring device J, now takesa charge of compressed gas from the storage chamber 1 and delivers acharge to the port 0, and to the working chamber A in the cylinder assoon as the free end of the compression member E has passed onto therecess B of the rotor B, and as this charge is ignited. another impulseis given to the rotor B to turn the same in the direction of the arrow:1.

The products of combustion are carried forward in the cylinder A, tofinally pass into the exhaust chamber A, from which the exhaust gasesare carried off by way of the ex haust pipe K.

The products of combustion remaining in a chamber J or J after the samehas moved out of registry with the corresponding port 6 or e are forcedout by blasts supplied by the blower S by way of the pipes S and ports f(see Fig. 10).

By reference to Fig. 4, it will be noticed that the free ends of thecompression members E and E provided with shoulders or offsets E, Eadapted to pa s into the ports 6, 6, respectively, and against which theforce of the explosion is first directed to hold the free ends of thecompression members E, E in firm contact with the peripheral face of therotor B.

Although I have shown the engine provided with two compression chambers,two storage chambers and two transferring devices, it is evident that Ido not limit myself to this arrangement, as only one or more suchdevices may be used by giving any desired number of impulses to therotor D during each revolution thereof.

Having thus described my invention, I claim as new and desire to secureby Letters Patent:

1. A rotary explosion engine comprising a cylinder, a rotor therein andhaving recesses in its peripheral face, a compression chamber connectedwith a gas supply, a valve controlling the admission of gas to saidcompression chamber, a compressing member in the said compressionchamber and forming an abutment operating in conjunction with the saidrotor to form with one of the recesses therein a working chamber in thesaid cylinder, a storage chamber receiving the compressed gas from thesaid compression chamber, and into which the compression chamberdirectly opens, a charge transferring device for transferring a chargefrom the said storage chamber into the cylinder, and an igniting devicein the charge transferring device.

2. A rotary explosion engine comprising a cylinder, a rotor therein andhaving recesses in its peripheral face, a compression chamber connectedwith a gas supply, a compressing member in the said compression chamberand forming an abutment operating in conjunction with the said rotor toform with one of the recesses therein a working chamber in the saidcylinder, a storage chamber receiving the compressed. gas from the saidcompression chamber, a revoluble plug having compartments adapted toregister with the said storage chamber and the said cylinder, totransfer an explosive charge from the storage chamber to the saidcylinder, and an igniting device in each of the said compartments forigniting the charge therein at the time the compartment is in registerwith the cylinder.

3. A rotary explosion engine comprising a cylinder, a rotor therein andhaving recesses in its peripheral face, a compression chamber connectedwith a gas supply, a compressing member in the said compression chamberand forming an abutment operating in conjunction with the said rotor toform with one of the recesses therein a working chamber in the saidcylinder, a storage chamber receiving the compressed gas from the saidcompression chamber, a revoluble plug having compartments ada ted toregister with the said storage cham er and the said cylinder, totransfer an explosive charge from the storage chamber to the saidcylinder, an igniting device in each of the said compartments forigniting the charge therein at the time the compartment is in registerwith the cylinder, and means controlled from the rotor and controllingthe said igniting de vices.

4. A rotary explosion engine comprising a cylinder, a rotor therein andhaving recesses in its peripheral face, a compression chamber, acompression member movable therein and in contact with the peripheralface of the said rotor, a rotary admission valve for the saidcompression chamber, a valved storage chamber for receiving thecompressed charge from the said compression chamber, a revolubletransferring device having a plurality of compartments adapted tosuccessively register with the said storage chamber and the interior ofthe said cylinder, means for igniting the delivered charges, and meansfor rotating the said admission valve from the receiving the compressedgas from the said said rotor.

A rotary explosion engine comprising a cylinder, a rotor therein andhaving recesses in its peripheral face, a compression chamber, acompression member movable therein and in contact with the peripheralface of the said rotor, an admission valve for the said compressionchamber, a valved storage chamber for receiving the compressed chargefrom the said compression chamber, a revoluble transferring devicehaving a plurality of compartments adapted to successively register withthe said storage chamber and the interior of the said cylinder, meansfor ignitf ing the delivered charges contained within the saidcompartments, and means driven by the said rotor for controlling theignition rotor to form a working chamber in the said cylinder, a storagechamber receiving the of the said igniting means.

6. A rotary explosion engine comprising a cylinder, a rotor therein andhaving recesses in its peripheral face, a compression cham.- ber, acompression member movable therein and in contact with the peripheralface of the said rotor, an admission valve for the said compressionchamber, a valved storage chamber communicating directly with thecompression chamber for receiving the compressed charge from the saidcompression chamber, a revoluble transferring device having a pluralityof compartments adapted to successively register with the said storagechamber and the interior of the said cylinder, means for igniting thecharge in a compartment at the time the latter is in register with thecylinder, means driven by the rotor for controlling the ignition of thesaid igniting means, a water jacket for the said cylinder, and a rotarypump on the shaft of the rotor for circulating water through the saidwater jacket.

7. A rotary explosion engine provided with a cylinder, a rotor therein,a revoluble plug having a plurality of compartments for successivelydelivering explosive charges to the said cylinder, and means forscavenging a compartment of the products of combustion after thedelivery and explosion of the charge.

8. A rotary explosion engine provided with a cylinder, a rotor therein,a revoluble plug having a plurality of compartments for successivelydelivering explosive charges to the said cylinder, and an air pumpdriven by the said rotor and having its outlet arranged for registerwith a compartment after the charge is delivered and ignited.

9. A rotary explosion engine, comprising a cylinder, a rotor therein andhaving recesses in its peripheral face, a compression chamber connectedwith a gas supply, a compression member in the said compression chamberand forming an abutment operating in conjunction with the said rotor toform with one of the recesses therein a working chamber in the saidcylinder, a storage chamber compression chamber, a charge transferringdevice adapted to register with the said storage chamber and the saidcylinder for transferring a charge from the storage chamber into thecylinder, means for igniting the charge in the charge transferringdevice at the time the latter is in register with the cylinder, andmeans for removing the products of combustion from the said chargetransferring device.

10. A rotary explosion engine comprising a cylinder, a rotor therein, acompression chamber connected with a gas supply, a compression membermovable in the said compression chamber and forming an abutmentoperating in conjunction with the said compressed gas from the saidcompression chamber, a charge transferring device for transferring acharge from the storage chamber into the cylinder, and igniting devicesin the charge transferring device for igniting the charge therein at thetime the charge transferring device is in register with the cylinder.

11. A rotary explosion engine having a cylinder, a rotor therein, acompression l e e n i chamber, an admission valve for admittingcompression member movable in t e said compression chamber and incontact with the rotor to form an abutment for the same, a valvedstorage chamber into which the compression chamber opens directly, arevoluble charge transferring device for transferring a charge from thestorage chamber into the cylinder, and an igniting device for ignitingthe charge in the said charge transferring device.

12. A rotary explosion engine provided with a cylinder, a rotor therein,a charge transferring device for successively delivering explosivecharges to the cylinder, igniting means in the charge transferringdevice, and means for removing the products of combustion from thecharge transferring device.

13. In a rotary explosion engine a cylinder, a rotor therein, acompression chamber connected with a gas supply, a compression membermovable in the said compression chamber to compress the charge therein,the said compression member forming an abutment for the rotor, arevoluble plug having a plurality of compartments for successivelydelivering explosive charges to the cylinder, means for conveying thecompressed gas to the said compartments of the plug, and an ignitingdevice in each of said compartments.

14. A rotary explosion engine comprising a cylinder, a rotor therein, acompression chamber connected with a gas supply, a pivoted compressionmember movable in the said compression chamber and forming an abutmentfor the rotor, a spring for the said compression member to hold the samein contact with the rotor, a storage chamber for the compressed gasprovided with a valve casing having a valve seat 0 ening directly intothe compression cham er, a spring pressed valve normally closing saidseat, a charge transferring device for transferring a charge from thestorage chamber into the cylinder, and an igniting device in the saidcharge transferring device.

15. A rotary ex losion engine having a cylinder, a rotor t ereinprovided with recesses in its peripheral face, a compression chamberconnected with a charge supply, a compression member movable in the saidcompression chamber to compress the charge therein, the said compressionmem ber being in peripheral contact with the said rotor to form anabutment for the same, a

storage chamber for receiving the compressed charge from the saidcompression chamber, a valve casing having ports registering with thestorage chamber and the interior of the cylinder, a revolubletransferring device mounted to turn in the said casing and adapted toreceive the com ressed UU 01.1.? D nus-:1, auu an 1l11l/111 UUVIUU 111.0116 said transferring device, the said compression member having itsfree end provided with an offset adapted to pass into the port of saidcasing opening into the interior of the cylinder.

16. A rotary explosion engine, comprising a cylinder provided with awater jacket, a rotor in the cylinder, a compression chamber connectedwith a gas supply, an admission valve for the said compression chamber,a compression member movable in the compression chamber and in contactwith the peripheral face of the said rotor, a valved storage chamber forreceiving the compressed charge from the compression chamber, arevolubletransferring device having a plurality of compartments adapted tosuccessively register with the said storage chamber and the interior ofthe cylinder, means for ignit ing the delivered charges, meansfol-controlling the igniting means, means for removing the products ofcombustion from the said compartments, and means controlled by the rotorfor circulating water through the said water jacket.

17. A rotary explosion engine provided with a cylinder having scavengingpassages leading to the atmosphere, a rotor in said cylinder, a storagechamber for the explosive gas, and a revoluble transferring devicehaving a plurality of compartments adapted to successively register withsaid storage chamber, the interior of the cylinder, and the scavengingpassages.

18. A rotary explosion engine provided with a cylinder, a rotor therein,a storage chamber for the explosive gas, a revoluble transferring devicehaving a plurality of compartments for delivering explosive charges fromthe storage chamber to the interior of the cylinder, an igniting devicein each of said compartments, and an air pump for scavenging acompartment after the explosion of a charge, the compartments beingadapted to register with the outlet of the air pump and with an exhaustport leading to the atmosphere.

19. In a rotary ex losion engine, a cylinder, a rotor, a mova le memberforming an abutment for the rotor, means for delivering explosivecharges to the cylinder and including a casing having a port openinginto the cylinder, a transferring device in the said casing, and anigniting device in the transferring device, the said abutment memberhaving its free end provided with an offset adapted to pass into thesaid port of the casing and against which the force of the explosion isfirst directed to hold the said mem ber firmly against the eriphery ofthe rotor.

20. In a rotary exp osion engine, a cylinder, a rotor therein, a comression chamber connected with a gas supp y, a compression gas from thestorage chamber and de 'ver it 1 member movable in the said compressionchamber to compress the gas therein, the said compression member formingan abutment for the rotor, a casing having an inlet port for thecompressed gas and an outlet port opening into the interior of thecylinder, a revoluble transferring device mounted to turn in said casingand having a plurality of compartments for successively deliveringexplosive charges to said cylinder, and an igniting device in each ofsaid compartments, the said compression member having its free endprovided with an offset adapted to pass into the port opening into theinterior of the cylinder, and against which the force of the explosionis first directed to hold the compression member firmly against theperipheral face of the rotor.

21. A rotary explosion engine comprising a cylinder, a rotor therein, acompression chamber connected with a gas supply, a compression membermovable in the said compression chamber and forming an abutment for therotor, a storage chamber receiving the compressed gas from the compression chamber, a charge transferring device having compartments adaptedto register with the storage chamber and the said cylinder to transferan explosive charge from the storage chamber to the cylinder, means forigniting the delivered charges, a distributer controlled from the rotorand controlling the said igniting means, and means for removing theproducts of combustion from the charge transferring device.

22. A rotary explosion engine, comprising a cylinder provided with awater jacket, a rotor in the cylinder and having recesses in itsperipheral face, the engine having com pression chambers connected witha gas supply, admission valves for the said compression chambers,pivoted compression members movable in the compression chambers andforming abutments operating in conjunction with the said rotor to formwith the recesses therein working chambers in the cylinder, the enginebeing provided with ex haust chambers with which the working chambersare adapted to be connected, exhaust pipes leading from the exhaustchambers, storage chambers for receiving the compressed gas from thecompression chambers, transferring devices each having plurality ofcompartments adapted to successively register with the respectivestorage chamber and the interior of the cylinder, means for igniting thecharges in the charge transferring devices, means for removing theproducts of combustion from the charge transferring devices, and meansfor circulating water through the said water jacket.

In testimony whereof I have signed my name to this specification in thepresence of two subscribing witnesses.

\VILLIAM ARTHUR SMITH.

Witnesses:

JOHN B. LEE, LILLIAN MAoEwnN.

